He learned it!

Every time he misbehaves, I always try to control my temper since I am utterly short-tempered. My way of telling him that what he's doing is not appealing is by saying "NO" in a high pitch voice. At times he doesn't pay attention as if nothing had transpired. Little by little he began to understand the concept of "scolding. I make him say "SORRY" for every misbehavior which he willingly does. What seemed to be the fruit of my hard work is when I heard him say "SORRY" without me telling him to say it. He's really learning the rope.